<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>


</head>
<body>
<script src="../js/vue.js"></script>
<div id="app">{{message}}</div>
<script>
    const app = new Vue({
        el:'#app',
        data:{
            message:"第一次，系统的学VUE"
        }
    })
</script>
</body>

</html>